Worktume calculator and stand



Feb. 12, 1952 L, F'ATTOR l"2,585,642

WORKTIME CALCULATOR AND STAND Filed July 18, 1949 INVENTOP: LOU/6 L. FF7-To?) Patented Feb. 12, 1952 UNITED STATES PATENT OFFICE 7 Claims.

The present invention relates generally to the calculator art, and more particularly to a novel Work time calculator and stand which includes a scale for deducting the time spent away from work during the work period.

In its preferred form, the calculator includes a rst disc having a series of spaced graduations on its upper surface adjacent the periphery thereof, the graduations representing twenty-four hours and being divided into an a. m. portion and a "p, m. portion. Rotatably mounted on top of the rst disc is a second disc which is of smaller diameter and which has a similar scale adjacent its periphery. The second disc, however, also includes a supplemental scale adjacent one end of the i'lrst scale which is used for registering the time spent away from work during the work period. A third disc of transparent material and having radial reference lines marked thereon for cooperation with the graduations is mounted above the second disc, the third disc being movable with the second disc and also having limited rotational movement relative thereto.

There are numerous work time calculators in luse at the present time, but most of these are complicated and diirlcult to use and none includes a quick and easy means for deducting the time spent away from work `during the work period.

It is an object of the present invention, therefore, to provide a novel work time calculator which includes means for quickly and accurately deducting the time spent away from Work during the work period.

Another object is to provide a work time calculator whereby the work time for each day can be easily and quickly determined regardless of the starting time or quitting time, and regardless of the time taken off for lunch or rest periods.

Another object is to provide a work time calculator which an inexperienced operator can be taught to use with a minimum amount of instruction.

Another object is to provide a work time calculator which can be operated with one hand, thereby leaving the operators other hand free to enter the results on the time sheet.

Another object is to provide a work time calculator which includes a collapsible stand for supporting thecalculator in an upright position.

tion, rugged and relatively inexpensive to manufacture.

Further objects and advantages of the present invention will be apparent from the following description, reference being had to the accompanying drawing wherein a preferred embodiment of the present invention is shown, in which:

Fig. 1 is a top plan View of the calculator and stand constructed in accordance with the teachings of the present invention, the stand being shown in the collapsed or unassembled position;

Fig. 2 is a bottom plan view of the calculator and stand with the latter shown in the collapsed position; l

Fig. 3 is a side elevational View of the calculator and stand, the latter being shown in the assembled position;

Fig. 4 is an enlarged top plan view of the calculator showing the disc in a neutral position;

Fig. 5 is an enlarged fragmentary top plan view of the calculator showing the scales set to indicate a one-hour lunch period;

Fig. 6 is an enlarged top plan view of the calculator similar to Fig. 4, but showing the scales set to indicate the hoursworked between 9:00 a. m. and 5:00 p. m., with a one-hour lunch period;

Fig. 7 is an enlarged fragmentary vertical sectional view taken on the line '1 -l in Fig. 4; and

Fig. 8 is an enlarged fragmentary Vertical sectional View taken on the line 8 8 in Fig. 4.

Referring to the drawing more particularly by reference numerals,|0 indicates generally a device constructed in accordance with the teachings of the present invention, which includes an indicator I2 and a stand I4.

The indicator I2 includes a disc I5 rigidly fastened to the stand I4 and contains an annular member I8 disposed on the top thereof adjacent its outer edge. The upper surface of the annular member I8 contains a series of graduations and numerals 20 around approximately one-half of its periphery as shown in Figs. 4 and 6. Starting at the left and reading clockwise, the numerals are l2, l, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 1(13), 2(14), 3(15), 4(16), 5(17), 6(18), 7(19), 8(20), 9(21), 10(22), 11(23), and 12(24), the numerals in parentheses actually being shown above the other numerals on the member I3. The word finish is also contained on the annular member I8 adjacent the center numeral I2.

A s'econd disc 22 is rotatably mounted on top of the stationary disc I6, the outer edge of the disc 22 being adjacent the inner edge oi the annular member le as shown in Fig. 7. The second disc 22 also contains a series of graduations and numerals 23 on its upper surface adjacent the outer edge. Starting at the left and reading clockwise, these numerals are 3, 2, 1, 12, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, l1, 12, 1, 2, 3, 4, 5, 6, '7, 8, 9, 10, 1l, and 12. The disc 22 also contains four radial lines 24, 25, 2B and 21 on the upper surface thereof. These lines terminate adjacent the first numeral 3 and each of the numerals 12. The words time out are contained on the disc 22 between the lines 24 and 25, the letters a. m. between the lines 25 and 26, and the letters p. m. between the lines 26 and 21.

The disc 22 also contains the Word start adjacent its outer periphery.

A third disc 28 is rotatably mounted above the disc 22, the above-mentioned discs being held together by a hub 30 of the configuration shown in Fig. 8. The disc 28 is .made of a transparent material, such as clear plastic, and contains an arcuate slot 3l adjacent its outer edge. The disc 28 also contains two opposed radial lines 32 and 34 which have arrowheads pointing to the graduations 20 on the inner edge of the annulal` member I8, and has diametrically opposed protuberances 35 and 36 extending outwardly from the periphery thereof for a purpose to appear. A washer 31 is disposed around the hub 30 on top of the disc 28.

As shown in Fig. 7, a hollow stud 38 is rigidly fastened to the disc 22 and extends upwardly therefrom, passing through the slot, 3|. ,A lever arm 4t is rotatably mounted on the hub 30 above the washer 31. It is preferably made of a rigid material, such Vas metal, and supports an actuating knob 42 adjacent its outer end and has an opening 44 inwardly thereof which receives the upper end of the hollow stud 38. A rubber tension gasket 45 and a washer 48 are disposed about the stud 38 above the lever armY 40, the upper edge of the stud 38 being peened over so as to maintain them.in position, and avwasher 49 is disposed between the arm 40 and the disc 28 to space the former from they latter to prevent marring of lthe surface of the disc `28 in movement of the arm 40 thereacross.

The stand I4 is made of cardboard or like material and includes a front member 50 rigidly fastened to the disc I6, a bottom member 52 hinged to the bottom edge of the front member 50, and a back member 54 hinged to the rear edge of the bottom portion 52.

A nap 56 is hinged to they upper edge .of the U front member 5t and contains arl eyelet 5,8 in the center thereof. A complementary lyelet 60 is contained in the upper portion of the back member 54.

In the assembled position, as shown in Fig. 3, the eyelets 58 and 60 are in alignment and a bolt 62 extends therethrough, the free end of the bolt having a wing nut 64 threadably disposed there Short rubber legs 66 are secured adjacent the lower surface of the bottom member 52 by screws 68 and a weight 10 is disposed adjacent the upper surface thereof, the screws 68 passing upwardly through the cardboard of the bottom member 52 and into the weight 10 so as to maintain it in position.

Operation Assuming that workmen start to work at 9:00 a. 1n., finish at 5:00 p. m., and have an hour off annular member I8 (Fig. 6).

for lunch, the total number of hours worked during the day would be determined as follows: The timekeeper preferably holds the protuberance 35 with the fingers of the left hand and manipulates the knob 42 with the thumb thereof to move the lever arm 40 until the numeral 1 in the time olf space between the lines 24 and 25 is coincident with the radial line 32 on the disc 28 (Fig. 5). Still holding the protuberance 35 with the fingers of the left hand, the timekeeper rotates the discs 28 and 22 relative to the disc I6 and annular member I8 until the number 9 (start) in the a. m. portion of the disc 22 is opposite the numeral 5 (finish) in the p. m. portion of the The total number of hours worked during the day would then be indicated in the outer row of numerals 20 opposite the arrowhead of the line 32, the amount in this particular instance being seven hours. Hence, only one hand is needed for this calculator. the other one being used for recording answers.

If it so happened that the workmen worked more than the twelve hours, the arrowhead of the line 32 would stop in the p. m. portion of the numbers 20 on the member I8 and it would then be necessary to read the outermost row of numbers which begin with the numeral 13. Thus, it is merely necessary for the operator to remember to always read the outermost of numerals.

Also, if the arrowhead of the lineV 32 stops opposite a blank space, which would occur when, for example, the workmen work from 10:00 in the morning until 8:00 the next morning with two hours oif for meals, the number of hours worked (20) would be read opposite the arrowhead of the line 34. In short, the numberof hours worked is read opposite the arrowhead of the line 32 if possible, and, if not, then it is read opposite the arrowhead of the line 34.

The weight 10 prevents the device I0 from being inadvertently turned over and the short rubber legs 66 prevent the desk top from becoming marred. The weight 'I0 plus the rubber legs 66 keep the calculator in place so that one hand alone may be used in its operation.

If the timekeeper wishes to flatten the device l0 so that it can be placed in a desk drawer, or the like, this can be accomplished by merely removing the Wing nut 64, removing the bolt 62, and unfolding the device to the position shown in Figs. 1 and 2.

Thus, it is apparent that there .has been nrovded a Simple and russe@ Work time calculator and stand which can be operated by inexperienced personnel after a` minimum amount 0f .instruction and which quickly produces an accurate result after a minimum number of settings and movements.

It is to be understood that the foregoing description and the accompanying drawing have been given only by way of illustration and example and that changes and alterationsy in the present disclosure, which will be readily apparent to one skilled in the art, are contemplated as within the scope of 'the present invention which is limited only by the claims which follow.

What is claimed is:

l. A. calculator, comprising a rst disc-like member having a graduated scale on the upper surface thereof adjacent its periphery; a second discelike member concentric with said first inember and having a complementary graduated scale on the upper surface thereof adjacent its periph,-

ery; said two members being mounted for relative rotational movementJ so that a preselected point on the scale of the second disc-like-member can be set opposite a preselected point on the scale of the first disc-like member; and a third member disposed on top of the second disc-like member and containing a reference mark adjacent its outer edge for cooperation with the scale on the first member, said third member being movable with the second member and having limited rotational movement relative thereto whereby the time taken off from work can be set o against the time worked.

2. A calculator, comprisinga first disc-like member having a series of equally spaced graduations on the upper surface thereof adjacent its periphery; a second disc-like member concentric with said iirst member and containing a similar series of equally spaced graduations on its upper surface adjacent the periphery thereof; said two members being mounted for relative rotational movement so that a preselected graduation on the second disc-like member can be set opposite a preselected graduation on the first disc-like member; and a third member disposed on top of the second disc-like member and containing a reference mark adjacent its outer edge for cooperation with the graduations on the first member, said third member being movable with the second member and having limited rotational movement relative thereto whereby the time taken off from Work can be set off against the time worked.

3. A work time calculator, comprising a first disc-like member containing a series of equally spaced graduations representing a predetermined number of hours on the upper surface thereof adjacent its periphery; a second disc-like member concentric with said first member and containing a first series of equally spaced 'graduations representing a predetermined number of hours on its upper surface adjacent the periphery thereof, said second member also containing a second series of equally spaced graduations adjacent one end of said rst series; said two members being mounted for relative rotational movement whereby a preselected graduation of the rst series of graduations on the second disc-like member can be set opposite a preselected graduation on the iirst disc-like member; and a third member disposed on top of the second disc-like member and containing a reference mark adjacent its outer edge for cooperation with the graduations on the first member, said third member being movable with the second member and .having limited rotational movement relative thereto whereby the reference mark can be set at a preselected graduation on the second series of graduations of the second disc-like member and then rotated therewith.

4. A work time calculator, comprising a rst disc-like member containing a series of equally spaced graduations representing a predetermined number of hours on the upper surface thereof adjacent its periphery; a second disc-like member concentric with said first member' and containing a first series of equally spaced graduations representing a predetermined number of hours on its upper-surface adjacent the periphery thereof, said second member also containing a second series of equally spaced graduations adjacent one end of said rst series; said two members being mounted for relative rotational movement; and a third member disposed on top of the second disc-like member and containing a reference mark adjacent its outer edge for cooperation with the graduations on the first member and the second series of graduations on the second member, said third member being movable with the second member and having limited rotational movement relative thereto.

5. A work time calculator, comprising a rst disc-like member containing a series of equally spaced graduations representing a predetermined number of hours on the upper surface thereof adjacent its periphery; a second disc-like member concentricl with said rst member and containing a first series of equally spaced graduations representing a predetermined number of hours on its upper surface adjacent the periphery thereof, said member also containing a second series of equally spaced graduations adjacent one end of said first series and as a continuation thereof; said two members being mounted for relative rotational movement; and a third member disposed on top of said second member and containing a reference line for cooperation with the graduations on the first member and the second series of graduations on the second member, said third member being movable with the second member and also having limited rotational movement relative thereto whereby the reference line can be moved the length of the second series of graduations on the second member.

6. A work time calculator, comprising a first disc-like member containing a series of equally spaced graduations representing a predetermined number of hours on the upper surface thereof adjacent its periphery; a second disc-like member of smaller diameter disposed on top of said first member and containing a first series of equally spaced graduations representing a predetermined number of hours on its upper surface adjacent the periphery thereof, said mema bei' also containing a second series of equally spaced graduations adjacent one end of said first series and as a continuation thereof, said second series of graduations representing the amount of time spent away from work during the work day; said two members being mounted for relative rotational movement; and a third member of transparent material disposed on top of said second member and containing a reference line within said second series of graduations for cooperation with said second series of graduations and the graduations on the first member, said third member being movable with the second member and also having limited rotational movement relative thereto whereby the reference line can be moved from one end of said second series of graduations to the other end thereof.

7. A calculator, comprising a rst disc-like member containing a series of equally spaced graduations on the upper surface thereof adjacent the periphery; a hub iixedly mounted at the center of said rst member; a second disclike member of smaller diameter rotatably mounted on said hub above the rst member, said second member containing a first series of equally spaced graduations on its upper surface adjacent the periphery thereof and a second series of equally spaced graduations adjacent one end of said series; an upwardly extending stud-like member fixedly mounted on the second member between its periphery and the hub; a third disclike member of transparent material rotatably mounted on the hub above the second member, said third member containing an arcuate slot receiving the upper end of the stud-like member and a radial reference line adjacent the periphery thereof for cooperation with the second series of graduations on the second member and the graduations on the rst member; and a lever arm rotatably mounted on the hub, said lever arm containing an opening receiving the upper end of the stud-like member.

LOUIS L. FATTOR.

REFERENCES CITED The following references are of record in the fue of this patent.'

Number Re. 15,743

Number UNITED STATES PATENTS Name Date Moir Jan. 8, 1924 Streek Mar. 9, 1886 Hicks Aug. 11, 1891 Overell Apr. 13, 1897 Lucas Feb. 6, 1923 Nelson Jan. 2, 1940 FOREIGN PATENTS Country Date Great Britain J an. 15, 1907 

